Electric connection



Jan. 29, 1924. 1,482,288

` C. A. DEUSCHER f ELECTRIC CONNECTION Filed July 20. 1920 'lllllllllllll/ll/lllllzllhwill/111111111 v v v wv A* A LA vIIllll/llllll/lll/l/lllllll/Il/ll/llll/L Will/111111111117 'nfl/10,01%

Patented dan. 29, 192e. c

r rte.

RLES AUGUST DEUSHER, NEW YORK, N. Y. I

ELECTRIC CONNECTION.

Application mea July 20,1320. seria1 no. 397,719.

To all whom t may concern.'

Be it known that l, CHARLES A. DEUSCH- En, a citizen of the United States, 'and a resident of the city of New York, borough '5 of Bronx, in the county of Bronx and State of New York, have invented a new and lmproved Electric Connection, of which the following is a full, clear, and exact description.

.llhisl invention relates to electrical conductors and has particular reference to a method and apparatus for connecting such conductors.

'An object of the invention is to provide a 1S simple and ready method whereby electrical conductors may be connected firmly and in a permanent manner without the use of solder.

Another object of the. inventipn is to provide an apparatus whereby electrical conductors to be connected may be joined by a. strong, compact metallicplink without the use of solder and b the use of a minimum number of parts an appliances.

Still another object resides in the provision of the particular construction and arrangement of parts as will hereinafter be l'described and claimed and shown in the accompanying drawing.

- The invention comprises in general the insertion of an end of the wire into a metalliel sleeve which is then pressed around the wirel on all sides -by the application of uniform pressure thereto from all sides. V1. The

end of the wire may be straight, but in some instances it'is preferable to give it a twisted,

v corrugated, or uneven outline or coniguration. This appearance may be given the wire by twisting it or bending it back on y 4o sauf.

The invention further comprises the provision of the ends of conductors, to be connected, with a series of indentations or ooyes, o r the roughening of the end suraees, and the union of adjacent surfacesto be connected, when so prepared, by compressing around the abutting end surfaces a metallic link or sleeve b the application of uniform ressure on sai pression of the link or sleeve von to the ends of the conductor is uniform throughout its length and'from all sides thereof. 'Fhis process and this apparatus do not require the use of solder to effect a simple,

link or sleeve froml 50 all'directlons simultaneously so that the comcompact and exceedingly strong and perma nent union.,

rlhis invention is equally applicable to the union of'one wire to a terminal plate or other element without relation to its con- 6@ nection to another conductor.

The invention is shown in the drawing, of which- Figure 1 represents a sectional view showing the ends of the conductors and the intervening link or sleeve in' position ready for the compression of the link thereon;

Figure 2 is a sectional view showing the parts after the compression has taken place;

Figure 3 is a sectional view representing 70 the use of a different form of conductorend;

Figure 4 represents a modified form of terminal plate or lug; and

Figure 5 represents a partial section of 'the modification shown in Fi 4.

As shown in the drawing, Figure 1 represents the application of my invention to the union of two wires 1 and 2 the ends of which are to be suitably mechanically and electrically co'nnected without the use of solder to form a rm, strong, permanent joint. ln the form shown in Figure 1, the end of each wire `is bent back upon itself and twisted in the form of a spiral as shown. These twisted end portions are then inserted within opposite ends of a connecting link or sleeve 3, which may be of any suitable metallic conducting material but which is preferably made of copper. This link or sleeve 3 is then compressed around the' abutting and adjacent ends of the conductors to be connected,'by any suitable means which will, during the compression, exert pressure on the link from all directions equally and simultaneously around its peripheral surfaces, so that the link is compressed o-r Swa ed onto the conductor ends uniformly. s a result of this compression, I have formed a union, such as shown in section in Figure 2 which is ex- 100 ceedingly strong andl durable, and one which has been so made without the use of solder.

In the case of heavier wires, it may not be advisable to form the spiral twists there- 105 in as shown in Figure l. In these cases it is found better to provide the ends of the wires with a roughened portion which may be produced by a le or byl producing thereon a plurality of grooves 4 by the use of a 110 plate, such asrepresented by the numeral 54 in Figure 4. The terminal plate 5 may be adapted for connection with binding posts and have at one end thereof a sleeve portion 6 which can be placed around the end of the wire to which it is to be connected and compressed? thereon in the manner above described'. The end of the wire' thus connected to the terminal plate may be prepared in either of the Ways above mentioned, either by producing aY -spiral twist therein or by forming grooves or roughened portions on its end surface, or (in an;T of the other above mentioned ways.

It is appa-rent, therefore that I have produced a simple, compact and ,exceedingly strong union of. electrical conductors, or of a conductor with a terminal plate, without the use of solder. I have found these unions l. A method of applying a sleeve connection to an electrical conductor which oomprises spirally twisting the end lof the conductor back upon a portion thereof to form a twist,`inserting said twisted portion within oneend of the sleeve, and compressing the sleeve on the end of the conductor by the application thereto of pressure `uniformly and simultaneouslyr from all directions. 4

2. An electrical connection comprising a conducting sleeve,` an electrical conductor having. an'end portion bent back on itself in the form of a spiral twist, said end portion inserted into one end of said sleeve, said sleeve being compressed upon said twisted end portion'to make 'a tight ine' chanical union between the sleeve and the end portion of the conductor.

CHARLES AUGUST DEUs-cHER. 

